Dodge Dakota Fuel Pump/Fuel System Questions

Comments

Ok so i have a 91 dakota with the 3.9 v6. when i barely push push on the gas peddle it sputters and wants to die it does it when its warm and cold but its just that one spot every where else is fine except the one spot when i barely push on the peddle runs fine except that spot

I have a 2003 Dakota 2wd 6 cyl., and whenever I back up and stop to put the truck in gear, it just shuts off. it seems like it has to be a fuel delivery system problem but i have no idea what it might be.

I have a '98 V8 (318) the fuel pump is controlled by the fuel pump relaywhich is controlled by the PCM (power control module)/engine managementcomputer. Assuming the fuses are good, the fuel pump relay controls fueldelivery to the fuel rail/injectors. (normal operating pressure is 45-50 psi)If the engine is running, pulling the fuel pump relay will stop the fuel pump(located in fuel tank) from running and once the pressure in the fuel railbleeds down to less than 25 psi, the fuel injectors will stop working andthe engine dies being starved of fuel.

Assumption here is that your V8 is similar to mine and has the samecontrol circuits. The ASD (auto shutdown relay) will kill the injectors, and ignition coil.It is controlled by the PCM. The check engine light will probably come on.

For the ASD relay to NOT operate..all sensors need to be functional.

For the ASD relay to operate any one of the Critical sensors indicatingsome kind of fault to the PCM (camshaft or crankshaft) . The PCMwill de-energize both the both the fuel pump relay and the ASD relay. is in the fuel pump module

This fuel pump module in the tank is a very stupid design. Not only do you haveto drop the fuel tank (and it needs to be partially empty), but getting at the filterpressure regulator is a real chore. I wanted to change my fuel filter and wastold by a couple of aftermarket parts places.."no listing on that item".So in essence, you have to wait until the fuel filter clogs up or buy a completenew fuel pump module for several hundred dollars.Very stupid engineering..Dodge/Chrysler!